In a new Instagram photo, the mama-to-be, 30, is glowing in a fitted grey maxi dress and denim shirt at seven months pregnant.

In May, Heidi and husband Spencer Pratt revealed that they are expecting a little boy.

The first-time dad-to-be joked about not wanting his son watching The Hills, “With all due respect to Heidi and I, we cannot afford any less brain cells than they’re already starting with at the gateway.”